Finding the Fourth Proportional to 189,983.82, 262,185.39 and 105,099.42

Step by Step Solution

1. Step 1: Write the proportion equation
   189,983.82 : 262,185.39 = 105,099.42 : x
2. Step 2: Convert to fraction form
   189,983.82/262,185.39 = 105,099.42/x
3. Step 3: Cross multiply
   189,983.82x = 262,185.39 × 105,099.42
4. Step 4: Simplify right side
   189,983.82x = 27,555,532,421.47
5. Step 5: Solve for x
   x = 27,555,532,421.47/189,983.82
6. Step 6: Final answer
   x = 145,041.47